Here are the answers to your questions:
Question 1:
Water vapor is water in which form?
Response: gas
Question 2:
When does water evaporate fastest?
Response: on a hot day
Question 3:
What crushed the barrel?
Response: water changing from liquid to gas
Question 4:
What is it called when a gas turns into a liquid?
Response: condensation
Question 5:
Where did the water droplets on this cold mug come from?
Response: water vapor in the air
Question 6:
What are clouds made out of?
Response: tiny water droplets
Question 7:
When water forms water vapor, what process is happening?
Response: evaporation
Question 8:
How old is most of the water we drink today?
Response: millions of years
Question 9:
(No question provided; response choices seem to relate to forms of water or moisture)
Response: dew (assuming it refers to moisture from condensation)
Question 10:
What is the constant motion of water condensing and evaporating all around us called?
Response: water cycle
Feel free to ask if you have more questions or need further clarification!